ChapterThreeHow to Apply behavioral economy method to assist government to implement policy Can behavioral economic method be applied to different countries' governments to assist them to implement policies to threaten product sellers or service providers to make monopoly price sale behaviors any time easily? This is one fun question to concern whether governments can predict when any manufacturers or service providers who make sale price or service price in order to protect consumers' shopping benefit from any product sellers or service providers rise price monopoly in unfair sale behaviors or sale transactions in markets.I shall indicate some product sale cases to explain whether behavioral economy method can be applied to threaten sellers' unfair sale behaviours in business environment as below: For considering policy toward smorking sellers' cigarettes sale behaviours that is arguably not much different from the behaviour of pedestrians from foreign countries in London big city, UK country cexample. In contrast to a preference for some people do get pleasure from the smoking decision to enjoy the short term benefit and accept the long term risk is irrational for London city, UK smokers. However, in the United States and no doubt anymore, there is likely a consus that starting to smoke is irrational and that it would be desirable to prevent anyone from starting to smoke and to help all current smokers break the smoking habit. Therefore, there is no consensus among either the public of among professional economists, including behavioral economists that smoking should be banned to implement policy from government easily . Because smoking will be some current smokers' habits, e.g. they need to smoke at least one tobacco per day habitually. Although, tobacco sale price is possible high. But, they can't choose to smoke less, due to habit causes, they will feel smoking seems to be eating rice every day. But, it is possible if the tobacco brand seller rises tobacco price sightly. It will influence the current smokers choose to buy another brand tobacco to smoke in possible. So, habitual smokers will be harder to control to reduce smoke tobacco or cigarette number.Indeed, ban on tobacco products to sell to public, it is different to implement. it is similar to another similar alcohol products under prohibition. It is also different to ban, due to the alcohol habitual drinkers can not control to drink less alcohol. They will be possible to reduce to buy the brand of alcohol to drink, if the brand of alcohol seller rises sale price high suddenly. They will not choose not to buy any more alcohol to drink. They will only choose to buy another brand of alcohol to drink to replace the rising price of alcohol brand. Hence, in tobacco and alcohol raising sale price prohibition policy market, every government is different to ban their number to sell to public easily. Due to habits have caused the current tobacco smokers or alcohol drinkers their essential soft drink or smoking tool to satisfy their enjoyable smoking or drinking feeling for physical need.As with alcohol under prohibition, a ban on smoking would likely result in a black market for cigarettes. Supply in that market would be provided by criminal organizations attractively. Due to governments are different to ban cigarettes or tobaccos and alcohol sale number to be control to reduce to let alcohol or smoking consumers to buy. Because these both kinds of consumers who won't reduce to buy any brands of tobaccos or alcohols to drink or smoke easily, even they raise their price sightly. It is based on their habitual smoking or drink alcohol behaviours than often.